R Series cartridges are manufactured from a durable, non-woven
and reusable polyester fabric that is suitable for a wide
range of filtration uses.
The media is pleated around a polypropylene core for added
strength, and the ends are immersed in a thermo-setting
vinyl plastisol. Embedding and sealing each end of the pleat
block in this fashion fuses the three components, together
forming a unitized end cap and gasket. The overlap seam
is sonically welded to reduce internal bypass, improving
The standard 9-3/4 length cartridge has more than
four square feet of polyester fabric, while the larger Big
Blue® version has more than 16 square feet. The media
is pleated to maximize dirt-holding capacity and extend
the time period between changes or cleaning.
R Series cartridges are resistant to both bacteria and chemical
attack making them suitable for a variety of residential,
commercial and industrial applications.